HIIT, or high intensity interval training, is the class for you if you want a killer sweaty workout in less than 30 minutes. Our HIIT workouts are bodyweight-only so you can do them from anywhere. Think squats, lunges, planks and more. All-out, one hundred percent efforts through quick, intense bursts are followed by short recovery periods. This type of training gets your heart rate up and keeps the metabolic burn going after your workout is over.